A computed tomography (CT) imaging apparatus includes a radiation source to emit X-rays while rotating in a predetermined trajectory a plurality of detectors arranged in a circular ring and configured to detect the emitted X-rays and processing circuitry to cause the radiation source to scan an object, and cause a subset of the detectors nearest to the radiation source to move in a direction intersecting with a plane of the predetermined trajectory of the radiation source in accordance with a determined location of the radiation source.
